Display panel extension



FIG. 1 is an isometric view of the subject design;

FIG. 2 is a top view of the subject design;

FIG. 3 is a bottom view of the subject design;

FIG. 4 is a side view of the subject design taken in the direction of lines 4—4 in FIG. 2;

FIG. 5 is an opposite side view of the subject design taken in the direction of lines 5—5 in FIG. 2;

FIG. 6 is an end view of the subject design taken in the direction of lines 6—6 shown in FIG. 2; and,

FIG. 7 is an opposite end view of the subject design taken in the direction of lines 7—7 as shown in FIG. 2. 

The ornamental design for a display panel extension, as shown and described. 